*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.tou{
    width: 100%;
    height: 0.88rem;
}
.title{
    width: 100%;
    display: flex;
    height: 0.7rem;
    background-color: #333333;
    align-items: center;
    padding-left: 0.3rem;
}
.title_xiao{
    font-size: 0.24rem;
    color: #ffffff;
}
.title>a{
    font-size: 0.24rem;
    color: #ffffff;
}
.title>span{
    font-size: 0.24rem;
    color: #ffffff;
    margin:0 0.16rem;
}
.video{
    width: 7.5rem;
    height: 3rem;
    background-color: #000000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.video_p1{
    font-size: 0.22rem;
    color: #ffffff;
}
.video_p2{
    width: 2.2rem;
    height: 0.65rem;
    background-color: #00ccff;
    color: #ffffff;
    font-size: 0.22rem;
    line-height: 0.65rem;
    text-align: center;
    margin-top: 00.2rem;
}
.directory{
    width: 6.9rem;
    height: 0.89rem;
    display: flex;
    margin: auto;
    border-bottom: 1px solid #f0f0f0;
    list-style: none;
    justify-content: center;
}
.directory p{
    width: 1.1rem;
    height: 0.87rem;
    text-align: center;
}
.directory p:hover{
    border-bottom: 1px solid #00ccff;
}
.directory>li p{
    color: #000000;
}
.directory>li p:hover{
    color: #00ccff;
}
.directory_xiang{
    line-height: 0.87rem;
    font-size: 0.28rem;
    margin-right: 1.2rem;
}
.directory_mu{
    line-height: 0.87rem;
    font-size: 0.28rem;
}



.floor{
    width: 6.9rem;
    margin: auto;
    padding-left: 0.1rem;
    padding-top: 0.32rem;
}
.floor h3{
    font-size: 0.28rem;
    color: #000000;
    margin-bottom: 0.13rem;
}
.floor p{
    font-size: 0.23rem;
    line-height: 0.42rem;
    letter-spacing: 0.03rem;
}




.position_head{
    width: 100%;
    height: 0.88rem;
    position: fixed;
    top:0;
    background-color: #f2f2f2;
    padding-left: 0.4rem;
}
.position_head a{
    height: 0.88rem;
    width: 0.29rem;
    display: flex;
    align-items: center;
}
.position_head img{
    width: 0.29rem;
    height: 0.29rem;
}
a{
    text-decoration: none;
}